Using sold data your board restricts

Two different pools, two different sets of rules

CREA’s REALTOR® Code defines MLS® Systems in its own interpretation section as “member-to-member cooperative selling systems that benefit REALTORS® and their Buyers and Sellers” (crea.ca, REALTOR® Code). That phrase — member-to-member — is doing real work: the raw comparable-sales data an agent builds a price opinion from is not published anywhere a buyer, seller or unlicensed party can independently pull it. It exists inside a system whose whole design assumes the person querying it is a REALTOR®.This is also why a seller who has spent months scrolling a public portal is often surprised by what their own agent brings to a listing appointment. The portal and the board’s internal MLS® System are not the same dataset seen through two different windows — they are two different pools, and the second one is where the closed comparables actually live.

What actually gets pushed out publicly — and what does not

The Code’s own definition of Internet Data Exchange (IDX) is specific about what it covers: a reciprocal arrangement where “consenting brokerages agree to advertise on their Internet websites, each other’s active listings” — active listings, named explicitly, subject to the applicable board’s rules (crea.ca, REALTOR® Code). CREA’s own REALTOR.ca DDF® syndication network is built the same way — a managed service for sharing listings across partner sites, franchisor pools and personal websites (crea.ca). Closed, sold data is not part of either mechanism — the machinery that pushes a board’s content out to the public web is built around what is currently for sale, not what has already sold.Even CREA’s flagship comparative tool is restricted the same way. The MLS® Home Price Index page states plainly: “REALTORS® have exclusive access to the MLS® HPI… REALTORS® should contact their board or association for more information on how to access the MLS® HPI” (crea.ca). A consumer cannot look up a neighbourhood’s benchmark price directly — that access runs through a REALTOR®, by design, the same way access to sold comparables does. See the MLS Home Price Index, explained.

Access is one rule; what you do with it once you have it is a second, separate rule

Getting into the sold data is only the first restriction. Once an agent has a specific closed sale in hand, publishing or forwarding that price is governed by a different rulebook entirely — RECO’s advertising bulletins set consent requirements for disclosing a specific sold property’s price or terms publicly, separate from the board’s own access rules. Confusing the two is the common mistake: an agent who has properly accessed a comparable through their MLS® System privileges has not thereby cleared the separate question of what they are allowed to do with that specific figure in a public-facing post — see can you post a sold price publicly?The two rules exist for different reasons. The access restriction protects the board’s data as a member benefit — it is, functionally, part of what membership buys. The advertising-consent rule protects the parties to a specific closed transaction from having their sale price broadcast without their agreement. A comparable pulled for a CMA and a comparable named in a farming flyer are the same number, governed by two different obligations.

Why this gap is actually the value proposition

An automated public-facing valuation tool works from whatever data is openly available — assessment records, public listing history, and whatever closed-sale data a given jurisdiction happens to make public. A REALTOR®’s CMA works from the board’s own member-only comparable data plus the MLS® HPI’s benchmark methodology, neither of which the automated tool can query directly. That gap is not an inconvenience for a seller to work around — it is close to the entire case for using an agent instead of a public estimate in the first place; see using the Home Price Index in a listing appointment for how to put that access to work in the room.It is worth saying to a seller directly, rather than leaving as an assumption: the reason a CMA looks different from whatever the portal has already shown them is not that the agent is withholding anything, or padding the file. It is that the two are drawing from genuinely different pools, and only one of those pools is built to be publicly queryable at all.

Explaining the gap without overstating it

None of this means a public estimate is worthless, or that a seller is wrong to have looked at one before the listing appointment — it means the two tools are answering related but different questions from different information. A public estimate works from whatever is openly available in a given market; a REALTOR®’s CMA works from the closed comparable data the board itself restricts to members, cross-checked against the benchmark methodology behind the MLS® HPI. Naming that difference plainly, rather than either dismissing the portal number or pretending the two should already agree, is usually the more credible opening than either extreme.The same distinction is worth carrying into how sold data gets used once it is in hand for a specific file: access through the board is what makes a defensible comparable-sales analysis possible in the first place, and the separate advertising-consent rule is what keeps a specific transaction’s details from travelling further than the parties to it agreed to.

Common questions

Can a seller just look up sold prices themselves the way they browse active listings?

Not through the same public portals. CREA’s own REALTOR® Code frames MLS® Systems as member-to-member, and the syndication mechanisms that push content to public sites — IDX, REALTOR.ca DDF® — are built around active listings, not closed sales. Sold comparables are accessed through a REALTOR®’s own MLS® System privileges.

Is the MLS® Home Price Index public?

No. CREA states directly that REALTORS® have exclusive access and that a consumer would need to go through a REALTOR® or their board to see it — the same access model as sold comparable data generally.

If I have legitimate access to a sold comparable, can I publish it anywhere I want?

No — access and publication are governed separately. RECO’s advertising rules require consent before disclosing a specific sold property’s price or terms publicly, regardless of how the agent obtained the figure in the first place.

Why does this matter for a listing presentation?

Because it is the honest, sourced answer to why a CMA can differ from what a seller has already seen on a public site — the two are built from different data pools, one of them restricted to REALTORS®, and that restriction is exactly what makes the comparative analysis worth having.